Title :
Noise-shaping coding through bounding the frequency-weighted reconstruction error
Author_Institution :
Electr. Eng. Dept., Nat. Sun Yat-Sen Univ., Kaohsiung
Abstract :
A novel noise-shaping feedback coding scheme is derived by bounding and minimizing its filtered reconstruction error. The stability and performance of this coding scheme are rigorously analyzed. Analytic designs then can be obtained based on the derived stability conditions and noise-shaping equation. A fifth-order coder is designed for converting 3 MHz wide-band signal to a 4-bit quantized signal at a sampling rate of 96 MHz, with an effective resolution of 17 bits
Keywords :
encoding; quantisation (signal); sigma-delta modulation; 3 MHz; 4 bit; 96 MHz; analog-digital conversion; fifth-order coder; filtered reconstruction error; frequency-weighted reconstruction error; noise-shaping equation; noise-shaping feedback coding; sigma-delta modulation; Equations; Feedback; Frequency; Noise shaping; Performance analysis; Sampling methods; Signal design; Signal resolution; Stability analysis; Wideband; Analog–digital conversion; coding; quantization; sigma–delta modulation; stability;
Journal_Title :
Circuits and Systems II: Express Briefs, IEEE Transactions on
DOI :
10.1109/TCSII.2005.855041
